Carnes SCR User Manual
COPYRIGHT © 2011 CARNES COMPANY
ALL RIGHTS RESERVED
SUPERSEDES 20181 20181-A
SPECIFICATION SHEET
INTERMITTENT FAN POWERED AIR TERMINAL WITH ELECTRIC REHEAT
ANALOG ELECTRONIC CONTROLS — ET - CONTROL OPTION
SCR CONTROL OPTION
CONTACT FACTORY PRIOR TO ORDERING THIS CONTROL SEQUENCE
CARNES COMPANY 448 S. Main St., P. O. Box 930040, Verona, WI 53593-0040 Phone: (608)845-6411 Fax: (608)845-6504 www.carnes.com
SEQUENCE OF OPERATION
ON A CALL FOR COOLING, AIRFLOW WILL INCREASE AS THE
DAMPER OPENS TOWARDS THE MAXIMUM CFM SETTING TO
SATISFY ROOM SET-POINT.
ON A CALL FOR HEATING, AIRFLOW WILL DECREASE AS THE
DAMPER CLOSES TOWARDS THE MINIMUM CFM SETTING TO
SATISFY ROOM SET-POINT.
WITH A FURTHER CALL FOR HEAT, DAMPER WILL REMAIN AT
MINIMUM CFM (AS SHOWN) OR SHUT OFF AND FAN WILL BE
ENERGIZED TO INDUCE WARM PLENUM AIR THROUGH THE
UNIT.
IF ADDITIONAL HEAT IS REQUIRED, THE ELECTRIC HEAT IS
ENERGIZED.
0-10 VDC
0-10 VDC
AA11
AA22
CONTACT FACTORY PRIOR TO ORDERING
THIS CONTROL SEQUENCE.
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